package main

import (
	"fmt"
)

func main() {
	fmt.Println("Hellow world")
	multi_change()
}

func multi_change() {

	a := 1
	b := 2

	fmt.Println("a= ", a, "b = ", b)

	a, b = b, a

	fmt.Println("a= ", a, "b = ", b)

}
